Schweitzer Engineering 851#BKCQ overview
Schweitzer Engineering 851#BKCQ 085100001110100 SEL-851 Feeder Protection Relay The SEL-851 provides comprehensive feeder protection, monitoring, and control fo...
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Manufactured bySchweitzer Engineering
Product groupModules
DescriptionSchweitzer Engineering 851#BKCQ 085100001110100 SEL-851 Feeder Protection Relay
OverviewThe SEL-851 provides comprehensive feeder protection, monitoring, and control for utility and industrial applications in a compact device. Its arc-flash protection capabilities significantly reduce incident energy by sending a trip signal to a breaker in as fast as 1 ms. With 10 kHz sampling of currents and voltages, the SEL-851 allows you to gain better visibility of your system. The relay is configured with SEL Grid Configurator software, enabling the quick creation, management, and deployment of device settings.
Features & BenefitsProtection, monitoring, and control in a simple, compact package Apply comprehensive current, voltage, and frequency elements to protect low- and medium-voltage feeders. Increase safety and reduce incident energy with arc-flash protection that sends a trip signal to a breaker in as fast as 1 ms. Quickly create, manage, and deploy relay settings using SEL Grid Configurator. Simplify relay selection due to the universal power supply, universal current inputs, and software-settable binary inputs. Easily integrate the relay into your system using dual Ethernet ports that support IEC 61850, DNP3, and Modbus protocols.
Front Panel FeaturesLarge LCD display for navigation, relay control, and diagnostics Function keys USB-C engineering access port Two fixed and eight programmable tricolor LEDs Trip and Close breaker control pushbuttons Local/Remote and Target Reset control pushbuttons
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